Thankfully, this kind of thing is self-limiting.

The more expensive crops become (due to diminishing usable topsoil) relative to the cost of things like fertilizer and hiring land use experts to advise on how to reduce erosion, the more these will be used.

Looking at any trend and projecting it infinitely into the future without change is always a terrible idea.

Feedback looks exist everywhere. Trends will generally either accelerate, or slow down and level off, with time.